Add migrate repo archiver and packages storage support on command line (#20757)

* Add migrate repo archiver and packages storage support on command line

* Fix typo

* Use stdCtx

* Use packageblob and fix command description

* Add migrate packages unit tests

* Fix comment year

* Fix the migrate storage command line description

* Update cmd/migrate_storage.go

Co-authored-by: zeripath <art27@cantab.net>

* Update cmd/migrate_storage.go

Co-authored-by: zeripath <art27@cantab.net>

* Update cmd/migrate_storage.go

Co-authored-by: zeripath <art27@cantab.net>

* Fix test

Co-authored-by: 6543 <6543@obermui.de>
Co-authored-by: zeripath <art27@cantab.net>

5 files changed, 34 insertions, 92 deletions

diff --git a/models/db/iterate.go b/models/db/iterate.go
new file mode 100644
index 0000000000..3d4fa06eeb
--- /dev/null
+++ b/models/db/iterate.go
@@ -0,0 +1,34 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package db
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/modules/setting"
+)
+
+// IterateObjects iterate all the Bean object
+func IterateObjects[Object any](ctx context.Context, f func(repo *Object) error) error {
+	var start int
+	batchSize := setting.Database.IterateBufferSize
+	sess := GetEngine(ctx)
+	for {
+		repos := make([]*Object, 0, batchSize)
+		if err := sess.Limit(batchSize, start).Find(&repos); err != nil {
+			return err
+		}
+		if len(repos) == 0 {
+			return nil
+		}
+		start += len(repos)
+
+		for _, repo := range repos {
+			if err := f(repo); err != nil {
+				return err
+			}
+		}
+	}
+}
diff --git a/models/git/lfs.go b/models/git/lfs.go
index ec963cf593..179da3120a 100644
--- a/models/git/lfs.go
+++ b/models/git/lfs.go
@@ -278,29 +278,6 @@ func LFSAutoAssociate(metas []*LFSMetaObject, user *user_model.User, repoID int6
 	return committer.Commit()
 }
 
-// IterateLFS iterates lfs object
-func IterateLFS(f func(mo *LFSMetaObject) error) error {
-	var start int
-	const batchSize = 100
-	e := db.GetEngine(db.DefaultContext)
-	for {
-		mos := make([]*LFSMetaObject, 0, batchSize)
-		if err := e.Limit(batchSize, start).Find(&mos); err != nil {
-			return err
-		}
-		if len(mos) == 0 {
-			return nil
-		}
-		start += len(mos)
-
-		for _, mo := range mos {
-			if err := f(mo); err != nil {
-				return err
-			}
-		}
-	}
-}
-
 // CopyLFS copies LFS data from one repo to another
 func CopyLFS(ctx context.Context, newRepo, oldRepo *repo_model.Repository) error {
 	var lfsObjects []*LFSMetaObject
diff --git a/models/repo/attachment.go b/models/repo/attachment.go
index ddddac2c3d..afec78a425 100644
--- a/models/repo/attachment.go
+++ b/models/repo/attachment.go
@@ -226,28 +226,6 @@ func DeleteAttachmentsByRelease(releaseID int64) error {
 	return err
 }
 
-// IterateAttachment iterates attachments; it should not be used when Gitea is servicing users.
-func IterateAttachment(f func(attach *Attachment) error) error {
-	var start int
-	const batchSize = 100
-	for {
-		attachments := make([]*Attachment, 0, batchSize)
-		if err := db.GetEngine(db.DefaultContext).Limit(batchSize, start).Find(&attachments); err != nil {
-			return err
-		}
-		if len(attachments) == 0 {
-			return nil
-		}
-		start += len(attachments)
-
-		for _, attach := range attachments {
-			if err := f(attach); err != nil {
-				return err
-			}
-		}
-	}
-}
-
 // CountOrphanedAttachments returns the number of bad attachments
 func CountOrphanedAttachments() (int64, error) {
 	return db.GetEngine(db.DefaultContext).Where("(issue_id > 0 and issue_id not in (select id from issue)) or (release_id > 0 and release_id not in (select id from `release`))").
diff --git a/models/repo/repo_list.go b/models/repo/repo_list.go
index 9de76fa5ff..1fa469fcfe 100644
--- a/models/repo/repo_list.go
+++ b/models/repo/repo_list.go
@@ -15,36 +15,12 @@ import (
 	"code.gitea.io/gitea/models/unit"
 	user_model "code.gitea.io/gitea/models/user"
 	"code.gitea.io/gitea/modules/container"
-	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/modules/structs"
 	"code.gitea.io/gitea/modules/util"
 
 	"xorm.io/builder"
 )
 
-// IterateRepository iterate repositories
-func IterateRepository(f func(repo *Repository) error) error {
-	var start int
-	batchSize := setting.Database.IterateBufferSize
-	sess := db.GetEngine(db.DefaultContext)
-	for {
-		repos := make([]*Repository, 0, batchSize)
-		if err := sess.Limit(batchSize, start).Find(&repos); err != nil {
-			return err
-		}
-		if len(repos) == 0 {
-			return nil
-		}
-		start += len(repos)
-
-		for _, repo := range repos {
-			if err := f(repo); err != nil {
-				return err
-			}
-		}
-	}
-}
-
 // FindReposMapByIDs find repos as map
 func FindReposMapByIDs(repoIDs []int64, res map[int64]*Repository) error {
 	return db.GetEngine(db.DefaultContext).In("id", repoIDs).Find(&res)
diff --git a/models/user/search.go b/models/user/search.go
index f8e6c89f06..0aa9949367 100644
--- a/models/user/search.go
+++ b/models/user/search.go
@@ -9,7 +9,6 @@ import (
 	"strings"
 
 	"code.gitea.io/gitea/models/db"
-	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/modules/structs"
 	"code.gitea.io/gitea/modules/util"
 
@@ -125,28 +124,6 @@ func SearchUsers(opts *SearchUserOptions) (users []*User, _ int64, _ error) {
 	return users, count, sessQuery.Find(&users)
 }
 
-// IterateUser iterate users
-func IterateUser(f func(user *User) error) error {
-	var start int
-	batchSize := setting.Database.IterateBufferSize
-	for {
-		users := make([]*User, 0, batchSize)
-		if err := db.GetEngine(db.DefaultContext).Limit(batchSize, start).Find(&users); err != nil {
-			return err
-		}
-		if len(users) == 0 {
-			return nil
-		}
-		start += len(users)
-
-		for _, user := range users {
-			if err := f(user); err != nil {
-				return err
-			}
-		}
-	}
-}
-
 // BuildCanSeeUserCondition creates a condition which can be used to restrict results to users/orgs the actor can see
 func BuildCanSeeUserCondition(actor *User) builder.Cond {
 	if actor != nil {